SU683789A1 - Gas-purifying filter - Google Patents

Description

I

The invention relates to solid particle gas purification processes by a filtration method and can be used for dedusting building materials in the metallurgical, chemical, mining, and other sectors of the national economy.

A filter for purifying gases is known, comprising a housing, chambers of purified and dusty gas, and a device for regenerating a pulsating (pulsed) purge with compressed air ij.

The disadvantages of the known device are the impossibility of obtaining e (effective cleaning of large volumes of gas, the complexity of the device for regenerating filters.

A filter for cleaning gases is known, comprising a housing with vertical partitions, chambers of dusty and purified gas, between which inclined partitions are placed, a vertical duct fixed along the axis of the housing, and a device for regeneration i2.

In this filter, the e ({) factor is insufficient, but the process of regeneration of filter elements takes place.

The aim of the invention is to intensify the process of cleaning gases from dust by eliminating: the appearance of self-extinguishing air pressure waves during filter regeneration.

This goal is achieved by the fact that the filter is provided with a vertical partition installed inside the box along its axis.

FIG. 1 shows a longitudinal section filter; in fig. 2 - section A-A of FIG. one; in fig. 3 - section bb FIG. one.

Claims (2)

The filter consists of a housing 1 with a bottom 2, vertical partitions 3 placed in the case and chambers 4 and 5 separating it, respectively, dusty and cleaned gas, horizontal filter elements G in the chamber 4 dusty gas, between which are inclined partitions 7 peaks 8, 1 of 9 for entrance and 10 for exit of the dusty and purified gas, device. 11 for regeneration and a dust extraction device 12, a vertical duct 13, inside which a vertical partition 14 is installed along its axis, the filtering elements being mounted on vertical partitions 3 and a duct 13. Inside the case are mounted dust separators 15. The filter works as follows. Dusty gas through the inlet fitting enters the ducts equipped with louver dust separators 15, then it enters the chambers 4 of dusty gas, where the filter elements are located. The presence of a louver dust separator 15 contributes to a more efficient pre-cleaning of the gas, moreover, it protects the outer surface of the first gas filter elements from abrasive wear. The cleaned gas is removed from the filter by fitting. 1CC. After the filter elements are saturated with dust, they are automatically regenerated using pressure wave energy. The energy of the pressure waves is fed through the device 11 into the chambers 5 towards the flow of clean gas, from where pressure wave pulses with supersonic speed propagate through all cavities of filter elements 6, knocking out dust from them, then the pulses reach the duct 13 and, reflecting from the barriers 14 , again, in the cavity of the filter elements in the opposite direction. Having reached the walls of the housing 1 and reflected from it, the pressure waves again return to the duct 13 through the weathering of the filter elements. Such repeated movement of pressure waves through filter elements significantly increases the efficiency of their regenerator. Knocked out of the filter elements, dust is discharged along inclined partitions 7 with peaks 8 and. It is deposited on the bottom 2, from where it is periodically removed by the device 12. Thus, the design of the filter box with a vertical partition allows to increase the regeneration efficiency by eliminating the self-extinguishing of air pressure waves. According to the calculation of the economic effect of NIPIOTstrom materials as a result of using the proposed filter in the industry of building materials, metallurgical, chemical and other national economy will be 13.04 thousand rubles. in year. Claims A gas cleaning filter comprising a housing with vertical partitions, chambers of dusty and purified gas, filter elements with inclined partitions between them, a vertical duct fixed along the axis of the housing, and a regeneration device, characterized in that it is used for intensification purposes. and the process of cleaning gas from dust by eliminating the phenomenon of self-extinguishing pressure waves during filter regeneration, the filter is provided with a vertical partition installed inside the box along its axis. Sources of information taken into account in the examination 1. Authors svizhetelstvo 255O29, cl. O1 T) 46 / OO, 1969. 2. Forward number 241OO12 / 26 of 1976, according to which a decision was made to issue an author's certificate. L it